Tire insulation.



Y pounds to the square TIRE NSULATIQN.

Application filed April 7, 1917.

To all wwm it may concern.'

Be it known that I, JOSEPH Wnriiia Siriu- SoN, a citizen of the United States of America, residing at Garden City Hotel, Garden City, Long Island, New York, have inae .certain new and useful inprovenients in Tire Insulatioiis, of Which the following; is a speciiication.

My invention relates to the insulating oi pneumatic tires, and coi'isists of a detachable heat-retaining sheath to oe inserted 'between the inner pneumatic tube and the outer casing or shoe, and of such construction and material as ivill Wholly prevent or substantially diminish the communication ci intense frictional heat from the outer easing or shoe of a pneumatic tire, to the air Within the inner pneumatic tube, anoL so oeviate the most fruitful cause oi blow-outs to wit: the explosive expansion o air and generated gas, occasioned hy such communication of intense heat to the air Within the pneumatic tnhe, already subjected to a pressure of 'roin seventy-foie to one liunfirefl inch. The sheath is ina-:le o Woven asbestos strands having elastic core and so eornfoines resilience ano. non-heat conducting properties. its shape substantially conforms to the inner circumerenc-e of the outer shoe. lts resilience a6.- inits oi perf t coniiornfiity when the inner pneumatic tube is inated.

The rubber core of the strands is spiraliy and closely wound withv ashes-tos cord, anti the fabric is so Woven that when the sheath is in place between the inner pneumatic tube and the inner surface of the outer casing or shoe, all the cords will run transverself,7 with reference to the center line et the periphery of the outer shoe at which point the Woven elastic A- asbcstos i bric should be thickest. This will result in causing the Woven elasticasbestos abric to tighten the already close Weavin at the point Where the highest' ciegree o rictional heet is eoniinunicate, to Wit: the center line of the periphery of the outer shoe.

It is {generali} known as a matter of conimon observation, that tires blow out inucl'i. more often in summer than in winter. This fact supports my theory that blow outs which are not directlyl consequent upon puncture, are occasioned y excessive heat which, created by the frictional resistance et the outer surface of the tire or shoe against the road, reaches the air iii the pneumatic tube.

Speoication of Letters intent.

Serial No. io-05554;.

M v invention therefore, has as a primary oloject,- the insulation from lieat, of the air iii the inner tune.

Another object of my invention is to pre vent the iexing oiE the inner pneumatic tube as the tire rotates While the car is in motion on the road. This is accomplished oy the elastic quality of the asbestos-rumoer-cored sheath. l

Too niuch stress cannot he laid upon this retain-ding or preventing of the passage of heat to the air in the inner tuhe, and 'upon this preventing of flexing of the inner tuile While the Wheel is running' on any surface. The ering or continued creasing of the inner tune obviously creates a point ofnezcakness and superinuces a blow out et that point. The elastic quality, of sheath oi1 'fahrie will contribute to a restoration of the original 'position of the solcher of the inner tube, after it passes the point of stress at the centerline of 'the outer periphery nent to the roadbeci, in the process oi rotation. Lilie- Wise the fabric because oiE its elastic quality always teneis to restoration oi! original position of the transversely-y arranged ruhher-core three-.cls after they have passed the point of stress in the process oi rotetion.

ication has nothing to do against puiictire, 'though it Knight well he used in combination therewith. .lor it designed to prevent the.

ieating of the tire (i. c. the coniche: hoy of ruhher, etc., though it might Well loe used in the hotly or the snee) hut is to prevent the heating of the air in the inner nneumetie tuiie of the tire,

The warping cit i' a tubular ioiinA l fitting 'I the-tire} Wiii rhe achieved ir the process o Weaving by drop-stitching or other Weavinh process, but this process not subject present application.

The sheath (as "i'preer to cell it) could. he clesiNnec in c'iieineter, etc., to every type or pneumatic tire ansi give". Wheei bases., and ooul. be renioveii and reincorporateii new shoes after puncture of the olii; enel eeeordingly would outline the life of the shoes as weil as Ahe life oi the pneumatic inner tube. @hviously it would in no Way lessen the resiiience oi iniatezl under ioaci. l

As an article of manufacture, this elastic, asbestos, non -`ehsoifoeiit9 he retercling ano, to prever tiefiing.

,he sheath so as to eive t the tire,

CTI

heat-retarding sheath, in the torni ot a belting` ot' one continuous fabric, in conformation, so as to it the inner surface of the shoe, and admit of incasing the lpneumatic tube.

I claim:

1. An article of manufacture' consisting of closely woven strands, which strands consist of a core of rubber about which is wound asbestos cord.

Q. An article of manufacture, consisting ot" closely woven strands of plain asbestos cord woven together as., warp and woot, with strands consisting of a core ot rubber about which is wound asbestos cord.

3. A detachable sheath of elast-ic, heatretarding asbestos fabric, tubularlxv conforming in shape to the inner surface of the outer shoe of a pneumatic tire and open the length of its inner circumference. constructed of closely woven strands, which strands consist .ot' a core of rubber about which wound asbestos cord; the fabric to be so woven that all its threads will run at an angle ot' forty-tive degrees to the renter line ot the outer peripheryv of the sheath and to the center line ot the outer peripher \v of the shoe of the tire when the sheath is inserted: for use in combination with, and t'or 'mser4 tion between the inner pneumaticl tube and the outer shoe ot a pneumatic tire, or in the body of the outer shoe.

4. detachable sheath ot elastic. heat-retarding asbestos fabric. tubularl\v conform- 'vstrands consistingof a core of rubber ing in shape tothe inner surface of the outer shoe of a pneumatic tire and open the lengt-h of its inner circumference; constructed ot strands consisting of a core of rubber about which is wound asbestos Cord, for use in combination With and for insertion between the inner pneumatic tube and the outer shoe of a pneumatic tire, or in the body of the outer shoe.

5. A detachable sheath of elastic` heatretarding fabric. tubularly conforming in shape to the inner surface ot' the outer shoe o'f a pneumatic tire and open the length ot its inner circumference; constructed of about which is wound asbestos cord and -woven into a fabric with strands of asbestos cord; the fabric to be so woven thaty all its threads jwill run at an angle of forty-five degrees to the center line of the outer peripheryv ot' the sheath and to the center line of the outer peripheryof the lshoe ot the tire when the sheath is inserted; for use in combination with and t'or insertion between the inner pneumatic tube and the outer shoe ot a pneumati(l tire. or in the body of the outer shoe. i

ThisA specification signed and witnessed thi.` )t'h (lay of hiaten. 1917.

JOSEPH NHTLA STINSO'N.

lu the presence of- A. lnvrxc Sco'rr, .tous L. CLASS. 

